/Engine/Source/Editor/BlueprintGraph/Public/BlueprintActionDatabaseRegistrar.h
Occasionally (when an asset is added/refreshed), this registrar will be passed around to gather only specific keyed actions (see ActionKeyFilter). In that case, it will block registration of all unwanted keys. Functionality wise this doesn't matter toUK2Node, butUK2Nodemay be able to save on some work/allocations if it knew this beforehand.
True if the OwnerKey would is allowed to register actions, false if it would be blocked.
bool IsOpenForRegistration ( [UObject](API\Runtime\CoreUObject\UObject\UObject) const * OwnerKey )